Radiator-cap.



J. D. HARRIS.

RADIATOR CAP.

APPLlcAloN mio Ams. |917;

Patented Sept. 3, 1918.

M/v/f JOSEPH D. HARRIS, 0F DETROIT, MICHIGAN, ASSIGNOR T0 MCCORDMANUFACTURING COMPANY, 0F DETROIT, MICHIGAN, 'A :CORPORATION OF MAINE.

ED STATES PATENT OFFICE.

RADIATOR-CAP.

Specification of Letters Patent.

Patented Sept. 3, 1918.

Application led April 9, 1917. Serial No. 160,682.

To allwhom t may concern:

Be it known that I, JosEPH D. HARRIS, a citizen of the United States,residing lat Detroit, in the countyl of Wayne and State of Michigan,have invented certain new and useful Improvements in Radiator-Caps; andI do hereby declare thefollowing to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention has for its object to provide an improved cap or cover forthe filler necks of automobile radiators, -and to such end, generallystated, the invention consists of the novel construction andcombinations of parts hereinafter described and defined in ythe claims.

In the accompanying drawings, which illustratethe invention, likecharacters in.- dicate like parts throughout the several views.

Referring to the drawings:

Figure 1 is a plan view of the invention;

Fig. 2 is a vertical section taken on the line 2-2 of Fig. 1; and

Fig. 3 is a transverse section taken approXimately on the irregular line3-3 yof Fig. 2.

The numeral 4 indicates the filler neck which may be made of a separatepiece soldere'd or riveted tothe top of the upper tank, or cast integraltherewith, or formed in any other way so far `as this invention isyconcerned, but provided preferably with an outstanding flange 5 at itsupper end, the `upper surface of which is flat so that it affords' anannular gasket seat.

The ,cap or coverI 6 has an annular gasket 7 adapted to be tightlyseated on the upper surface of the flange .5, and the said cover at theback is provided with a depending hinge lug 8 which by hinge bolt or pin9 is connected to laterally spaced lugs 1()` on the back of the neck 4.The lug 8 is provided with a dependingstop /11. The top of the cap 6 isupwardly bulged at 12, and at its under side it is provided with adepending perforated ear or flange 13.

Thev neck 4 at its back is provided with an internal inward projection14 that is internally threaded to receive the threaded end of a' thrustpost 15. .The post 15 as'preferably constructed has a bifurcated upperend, and to this bifurcated upper end a rod 16 is pivotally connected bya pin 17. The free end of this bolt 16 works freely through theperforation of the ear 13. A coiled spring 18 is placed on the bolt 16and re-acts against.

the lug 13 and the said bolt 16, as shown. 60

By reference to Fig. 2 it will be noted 70 that when the cap is in itsclosed position indicated by full lines, the spring 18 will exert adownward force on the cap, tending to keep the gasket 7 thereof tightlyseated on the-upper end of the filler neck. It is also evident that'when the cap -is in its open position indicated by dotted lines, thespring will securely, but yieldingl'y, hold the lid in' its open position. In fact, whenever the rod 16 is turned below a -line thatinter- 80 sects the pivots 9 and 17, it will exert a force that willautomatically close the lid, and whenever the said rod is above saidline, it willv exert a force which will throw the lid into its extremeopen position, indicated by dotted lines?. l, The said line noted is,therefore, the dead center portion of the spring device and the cap ismovable to throw this spring device from oneside to the other of saiddead center. It is also important to note that the pivot 17 is above theplane of the top of the filler-neckand that the perforation of thelug"13 is below said plane when the cap is in a closed position, so thatwhen the cap is in the closed position, the line of force of the springobliquely intersects the above noted plane and has a downward seating jaction on all portions of the cap, and for this reason, it is desirableto leave a little clear.-`

ance between the pivot pin 9 and its seat'in the lug 8. In its saidextreme open position, the stop 11 engages with the head of the setscrewl 21, but it might engage with any fixed part on or of filler neck.

Obviously, the cap may be very easily and quickly opened, and veryeasily and quickly closed, and when closed will insure a tight jointbetween the gasket and the'upper end` of the filler neck.

What I claim is:

l. The combination with a filler neck having an approximately horizontalannular upper face and a hinge lug at the rear thereof, of thrust postor lug Within said tube at the rear thereof, projecting above theannular face of said tube, of a cap hinged vto said hinge lug andprovided with a per forated ear that depends into said neck when saidcap is in a closed position, a rod hinged to said thrust post or lug andWorking freely through the ear of'said cap, and a coiled spring`surrounding said thrust rod and re-acting against the same and said ear,said cap having a movement from open to closed position that carriessaid spring from one side to the other of its dead center.

2..The-co1nbination Witha filler neck and a thrust post located thereinand projecting above the upper surface thereof, said post beingvertically adjustable, of a cap hinged to the back of said filler neckand provided with a perforated ear that depends into said neck when saidcap isin a closed position, a rod hinged to the upper end of said thrustpost and Working'l freely through said ear,

and a coiled spring surrounding said rod and re-actin against the sameand against said ear, said cap having a movement from open to closed'position' that carries said spring from one side to the other of itsdead center.

3. The combination with a ller neck and a thrust post located thereinand projecting above the Yupper surface thereof, of a cap hinged to,`the back of said filler neck and provided with a perforated ear thatdepends into said neck when said cap is in a closed position, a rodhinged to'the up er end of said thrust post andworking free y throughsaid ear, and a coiled spring surrounding said rod and re-acting againstthe saine and against said ear, said thrust post having threadedengagement With said neck Whereby it fmay be vertically adjusted.

In testimony whereof I aiix my signature `in presence of two Witnesses.

JOSEPH D. HARRIS.

Witnesses:

F. J. KosTAT, P. S. MORRIS.

